Keyphrases
System Matrix
100%
Circular Orbits
100%
Pinhole SPECT
100%
Gaussian Interpolation
100%
Geometric Calibration
100%
Rapid Construction
100%
Modified Gaussian
100%
Interpolation Method
71%
H-matrix
71%
Grid Scan
42%
Pinhole
42%
Point Response Function
42%
Projection Angle
42%
Rough Grids
28%
Multi-resolution
14%
Spatial Resolution
14%
Point Source
14%
Two Dimensional
14%
High Spatial Resolution
14%
Three-dimensional Grid
14%
Grid Spacing
14%
Arizona
14%
Grid Pattern
14%
Geometric Parameters
14%
Phantom
14%
Processing Time
14%
Hot Rods
14%
Geometric Projection
14%
SPECT Imaging
14%
Gaussian Coefficients
14%
Full Three-dimensional
14%
Calibration Phantom
14%
Gaussian Fitting
14%
3-point
14%
Voxel Size
14%
Regular Grid
14%
Multi-module
14%
Projection Model
14%
Gamma Spectrometry
14%
Engineering
Gaussians
100%
System Matrix
100%
Circular Orbit
100%
Rapid Construction
100%
Geometric Parameter
50%
Parameter Estimation
37%
Response Function
37%
Angle Projection
37%
Spatial Resolution
25%
Rod
12%
Two Dimensional
12%
Combined Method
12%
Source Point
12%
Processing Time
12%
Regular Grid
12%
Gamma Ray
12%
Mathematics
System Matrix
100%
Gaussian Distribution
100%
Circular Orbit
100%
Matrix (Mathematics)
62%
Parameter Estimation
37%
Response Function
37%
Multiresolution
12%
Voxel
12%
Source Point
12%
Multi-Module
12%